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All results from a given calculation for CH3CHCH2CH3 (2-Butyl radical)

using model chemistry: MP2=FULL/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2=FULL/6-311G*
 hartrees
Energy at 0K-157.303356
Energy at 298.15K-157.311963
HF Energy-156.697850
Nuclear repulsion energy122.214440
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at MP2=FULL/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3213 3044 27.03      
2 A 3173 3005 28.15      
3 A 3168 3000 25.53      
4 A 3167 2999 24.51      
5 A 3110 2945 25.45      
6 A 3082 2919 27.02      
7 A 3081 2918 21.74      
8 A 3026 2866 33.56      
9 A 3007 2847 35.01      
10 A 1545 1463 5.46      
11 A 1540 1458 9.87      
12 A 1533 1452 8.73      
13 A 1520 1439 8.75      
14 A 1517 1437 2.55      
15 A 1461 1384 5.82      
16 A 1448 1371 7.25      
17 A 1439 1363 0.67      
18 A 1341 1270 2.82      
19 A 1304 1235 0.07      
20 A 1212 1148 0.36      
21 A 1167 1105 0.13      
22 A 1104 1046 0.95      
23 A 1065 1009 0.44      
24 A 1007 954 4.01      
25 A 997 944 2.13      
26 A 873 826 0.20      
27 A 784 743 1.32      
28 A 438 415 0.74      
29 A 410 389 24.63      
30 A 263 249 1.70      
31 A 246 233 0.14      
32 A 133 126 0.12      
33 A 66 63 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 26219.8 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 24832.8 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP2=FULL/6-311G*
ABC
0.88501 0.12198 0.11468

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.978 -0.047 -0.064
H2 2.075 -0.806 -0.847
H3 2.683 0.758 -0.282
H4 2.304 -0.521 0.873
C5 0.576 0.453 0.030
H6 0.407 1.472 0.369
C7 -0.568 -0.505 0.094
H8 -0.549 -1.043 1.057
H9 -0.433 -1.280 -0.671
C10 -1.929 0.165 -0.081
H11 -2.097 0.914 0.698
H12 -1.991 0.668 -1.048
H13 -2.741 -0.563 -0.024

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 C7 H8 H9 C10 H11 H12 H13
C11.09471.09171.10031.49182.22732.59162.93912.77553.91314.25584.15134.7478
H21.09471.77011.75912.14543.07362.82173.25122.55894.19114.76994.32944.8923
H31.09171.77011.76492.15212.47253.50773.93523.74374.65474.88224.73745.5890
H41.10031.75911.76492.15572.79682.97552.90643.23324.39324.63234.85315.1245
C51.49182.14542.15212.15571.08651.49312.13532.12452.52392.79332.79243.4698
H62.22733.07362.47252.79681.08652.22092.77713.05932.71452.58682.89973.7696
C72.59162.82173.50772.97551.49312.22091.10301.09751.52742.17162.16932.1775
H82.93913.25123.93522.90642.13532.77711.10301.74772.15812.52083.07192.4904
H92.77552.55893.74373.23322.12453.05931.09751.74772.16203.07482.52212.5017
C103.91314.19114.65474.39322.52392.71451.52742.15812.16201.09301.09221.0925
H114.25584.76994.88224.63232.79332.58682.17162.52083.07481.09301.76681.7658
H124.15134.32944.73744.85312.79242.89972.16933.07192.52211.09221.76681.7686
H134.74784.89235.58905.12453.46983.76962.17752.49042.50171.09251.76581.7686

picture of 2-Butyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 118.664 C1 C5 C7 120.502
H2 C1 H3 108.112 H2 C1 H4 106.539
H2 C1 C5 111.157 H3 C1 H4 107.254
H3 C1 C5 111.881 H4 C1 C5 111.641
C5 C7 H8 109.757 C5 C7 H9 109.231
C5 C7 C10 113.351 H6 C5 C7 117.986
C7 C10 H11 110.842 C7 C10 H12 110.708
C7 C10 H13 111.354 H8 C7 H9 105.163
H8 C7 C10 109.196 H9 C7 C10 109.820
H11 C10 H12 107.900 H11 C10 H13 107.796
H12 C10 H13 108.104
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability